... Corrosion Resistant Alloy Explosion Welding Bond Interface Bond Strength Direct Attachment INTRODUCTION Historically, steel has been the primary material for construction of upstream oil and gas equipment. Steel is tough, easily fabricated, relatively inexpensive. Corrosion concerns with steel have...

.... Depolarization potentials are consistently above 100 mV with long-term current densities around 2 mA/m². Bond strength remains adequate, averaging 0.50 MPa (73 psi). Some deterioration of the anode-concrete interface has occurred in the form of cracks and about 4 % of the bond strength measurements...

... ICCP systems (2.2 mA/m² based on anode area). Increasing moisture at the anode-concrete interface reduced the operating voltage of all the anodes. The pH at the anode-concrete interface fell to 7 to 8.5 with electrochemical age. Bond strength between the anodes and concrete decreased...

... resistance. During aging at 400 and 700°C the bond strength and crack resistance of the DyAir coatings increased dramatically due to intensive diffusion processes in absence of internal corrosion attack. The DyAir coatings revealed outstanding resistance to corrosion, such as sulfidation attack in presence...

..., GCP slabs were not aged at an accelerate rate. Bond Strength Measurements Measurements of the concrete tensile strength and anode bond strength were made using a universal testing machine. Aluminum dollies 50 mm (1.9 in.) diameter, identical to those used by Oregon DOT with portable adhesion testers...

... of electrochemical aging on voltage requirements, bond strength, coating resistivity, water permeability, and anode-concrete interfacial composition. zinc titanium thermal spray cathodic protection impressed current catalyst interfacial chemistry steel-reinforced concrete bridge bond strength water...

...The first one was based on the measurement of the coating bond strength after 10 cycles of heating up to 400 °C in air furnace, treating 20 min. and rapid cooling in water down to the room temperature. The ASTM C633 standard cylindrical samples were used in this case. The change in bond strength...

... mils (7.62 x 10^-5 m) of zinc react over time with concrete paste and water at the zinc-concrete interface to form zinc minerals. After an initial decline in zinc bond strength due to loss of mechanical bond between coating and concrete, secondary mineralization leads to the formation of zinc...

... of the samples were preheated prior to being arc-sprayed with zinc. The preheated samples had initial bond strengths that were 80% higher than the unheated samples. This difference in bond strength became insignificant after the passage of approximately 200 kC/m² (5.2 A-h/ft²) and bond...

... of the zinc coatings, the effect of operating and environmental variables on coating bond strength, and the corrosion performance of metals typically found in service equipment for cathodic protection systems and other utilities. Mass loss measurements are in progress at seven bridges and eight coastal areas...

... fusion bonded epoxy coating. fused polyolefin fusion bonded epoxy primer multi-layer system cathodic disbondmemt bond strength INTRODUCTION Fusion bonded epoxy coatings (FBEC) are the most widely used primary anti-corrosion pipeline protection system in North America ¹ . The principal...